A laboratory inside Mason Hall. Pictured is Pomona College professor E.P. Bartlett's chemistry lab. Bunsen burner, test tubes, and chemicals inside of bottles are some of the items visible on the table and shelves.

A steam shovel excavates a large pit on the construction site of Mason Hall. Two workers are in the cab of the steam shovel, operating the machine. Steam is emitting from two different points on the shovel. The arm of the shovel reads "Erie...

An architectural drawing of Pearsons Hall. Writing below the image reads: "Proposed Enlargement of Pearsons Hall - The Hall as it now exists is shown to the left of the main entrance. As enlarged, the building would form on College avenue the...